Shocic-absobber



B. REGENBRECHT.

SHOCK ABSOHBER.

APPLICATION man ria. 6. um.

Pntentcd Feb. 3, i920 "Juncnloz Bem/we rd fgenmch UNITED STATES PMENTOFFICE.

`BIiRv'IILRD REGENBRECHT, 0F ROCKDALE, TEXAS.

45 the rcs'stnnee offerm u'vm iw wiwi; body comepondngy myriad, v

In the drawings, I huw: ilustmm i 'rvfxredBinbodiment 0f my invention.hui

it `will of course be understoug, i'mi m- 50 changes* with regar@ iio siarrengvm and proportion of pms muy *e vsf out flcpurtng from theJ Figure1 is n side attached 0 the chass @if u ecicaticn of Letten Filtern..

Applicntexvled February i917.

. Patentm Feb. E. 'ii.

Serial No. 146,973.

washer plate t) is ot' eonvex formati-on and to permit the same to be.flattened out or eompressed a plurality ol' notehes it! of substantiallyV-shaped formation are provided whieh allow for the impressing of thewasher and produee a plurality| ot' separated portions aloner theperiphery ot' the same,

An adjusting means for varyingthe pressure placed upon the convex washer1t) is employed, the same being designated b v the numeral 11 fitting;Fover the widened portion ot' the shaft 2 and having.,r spaced openingsI12 therein receiving." the outstanding pins 8 of the flexible metallicwasher, this roverinf.r and adjustinf.;r member being of substantiallyan angular formation and provided on its interior with threads upon theflange -1 adapted to eoiiperate with the threads upon the exteriorsurface of the body 1 so that upon the adjustment of the cover theconvex washer is compressed whereby a, variable degree of friction isplaeed upon the base -l. it being: understood that a variable adjustingmeans is employed for applying: pressure upon the ratehetr member torender the turning thereof very hard or easy,`as the oeeasion mayrequire, this turning, ot eourse, being n'oportionate to the adjustmentof the memlier l2. To retain the member 11 in its adjusted position afasteniniir rinpr 14 is threaded upon the housing.;l 1 and foreed intoengagement with the eollar 12 so as to jam the same. 'lhis ringr isprovided with threads having' a pitch disposed opposite to the pitehofthe threads on the member 12 to positively lock thel same in itsadjusted position. but it will be undeistood thatother means rapable ofperforming' the desiredtendinay be used.

Mounted upon '-the widened part of the shaft 2 for a free rotarymovement is a portion lf3 havingr an inwardly. disposed part .14provided with peripheral ratehet teeth -15 adapted to cooperate with therati-het teeth upon the member 4. 'l`he portion 13 is also formed with apulley l5 near its end receiving the flexible eord. ehain or the like llwhirh is fastened to the pulley and attaelied to the axle in any eonvenient manner. lVhen the body is depressed it, is, of eourse, necessarythat the flexible eord 16 be wound upon the pulley to keep the, sametaut, and to maintain the rord in this eondition a eoil springI 17 isrigidly fastened to the outer end of the shaft 1 and lhenee. coiled sothat the inner eoils of the spring arel disposed inwardly and bearagainst the surface 17 of the part. 13, exerting an inward pressure uponsaid surface to retain the portion l-i in its proper position. When thebody is in its normal position the sprint;l 17 is under tension so thatimmediately the same drops the spring will unwind and totale the portionI3 whir'h merely rauses the ratchet teeth 15 to travel over the ratchetteeth onthe member 4, but the instant the body begins to ascend thecomplemental ratehet members engage each other and any upward movementof the body is resisted by the ratehet member 4 in view of the frictionplaced thereon. by the convex washer 9. A metallie protiwting plate 18is emiployed to surround the meeting portions of the part 13 and thecollar 11 to prevent dirt, gritand the like from entering between'thetwo eoperating` ratchet members, although any other protecting` meansmay ibe, ern ployed if found desirable. i

Havingr thus deseribed the various arts, it is believed the inventionmay be cearly understood. butI the operation may be briefly stated asfollows:

When the vehiele body and springs are oecupying their normal position asdiselosed in 'Fig'. 1, the amount of pressure to be placed upon theratehetmember 4 having been determined. the coil spring 17 is undertension and the eord wrapped aro'und the pulley portion of the absorberis in a tant eondition. If the vehicle should strike an obstacle and thebody descends the coil spring 17 will then rotate the portion 13 and thepulley thus retaining the connecting cord in a taut, condition, but therotation of the portion 13 does not oli'er any resistanee to the body.as it is not this movement whieh is injurious to the spring and eauses asevere shaking and jarring' of they oeeupants. The. seriousl dillieultyto overeome is to prevent a too rapid return or upward movement of thebody after the depression of the spring and the instant the body beginsto rise the eof'peratingr ratchet teeth are sub stantially locked, acontinued upward movement rausing theratehet member 4 vto bel turnedagainst the fra-tional resistance placed theleon by the convex metallicwasher t) so as to materially* cheek the upward movement of the vehiclebody.

l lawinef thus described the invention, what' I elaim is:

I. A, shoek absorber eomprisinp,` a casing, a shaft passingtherethrough, a'washer on said easing, a ratehet. member adjacent Saidwasher, a eurved resilient retardingwasher operatively assoeiated with.said ratehet' mem ber adjustable means for applying pressure upon saidwasher, a part rotatably mounted on said shaft adjacent the' casing. andhaving a ratehet eof'iperating with the downward movement of the firstmentioned ratehet. and a flexible op 2. )L shotlt absorber romprif-ing am-ing having! an externally tln'eafleil portion. a ,shalt passingrtheretliroirirb.y a ratrhet member within tho easing. :rresilientralrhrt ie tarilingmember operatively assoi-iateil \\il.il the ratehel,.uljnstable. means lor applying; pressure. npon saiil retariling memberron prismeA a einer hayinriga threaileil portion eooperating \\ith thethreaileil portion ol the easing. a part rotatably inonnteil on saidshaft adjacent the easing. a ratrhet earrieil by saiil part andr-a'iperatiirLr ith the first mentioned ratehet. and means attaehalileto the vehicle for rota-ting: saiil part.

3. A shock absorber rompi-isbn;A :i easing having an externallythrezuleil portion. a, -l|aft passing therethrough. a rali-het meinberwithin the easing. a resilient reim-lling member. adjustable means l'orapplying pressure upon saiil retarlinir member .'oinA prising a einerhaving a thremleil portion roipel'ating will] the th'eaileil portion oftin-Y ras'ing. aV parl rotatably mfmnteil on saiii shaft atljaeenty theeasing'. a rali-liet arrierl by saitl part and cooperating with thefirst mentioned ratc'het. anil means :ittaebable to the vehicle. forrotating said part. saiil means comprising a flexible operatin,; rmember.

4. A shot-lc absorber inelmling r'oiperating members adapted to moretogether in one, (lileotion. one of saiil members movin;r relative tothe otherA when moreil in an opposite, flirerton. a. enrrefl resilientymember nperatiyely associated with one of saiil first nientioneilmembers l'orretarilingl the movement thereof. anrl means for adjusting'the tension ol saiil resilient member. saiil resilient :nenn berlieinglV of 7"cular formation unil haring a plurality n nlizil sinhtherein.

A shriek absorber rwfmprisiir;l a rale'het inemlierm lion-ml tlislrmeinem* retard-ing element earrieal by the retulnt mamon. :en adjustableelement; enmigirigg lh; amer edge of saifl rel :x r','lii1;1` member @adpn-rinsed the rali'liet. member, aml :L eoinplemontal lziteiwt memberrooperating with said first mentioned ratelietmember.

fi. shoek absorber comprising a. ratchet member, a. bowed disk resilientretarding ele ment rarrieil by the ratehet, member, un adinstableyelena-nt engagini:Y the outer edge of said retariling member and carriedby the ratehet member. a eomplemental Iutehet member eoi'iperating withsaid lirst mentionerl ratehet member, and n flexible ele ment connectedwith the last mentioned ratchet..

7. A shock absorber including cooperating members adapted to moretogether in' one direction, and one member moved rela-tive to the otherwhen foree is applied in an opposite direction, a resilient memberoperatively associated with one o f said first mentioned members, meansfor' adjusting the tension of saiil resilient member eomprisinlj a partengaging the outer edge of the resi lent member ami having a threadedconnection with one of the, cooperating members, lsnbsl antia lly as(leseribetl.

it. A shoek absorber inelnding coperating members adapted to moretogether in one clireetion. anil one, member moved relative to the otherwhen force is applied in an opposite direction. a resilient memberoperatively assoeiatetl with one of said first mentioneil members. meansfor adjusting the tension of saifl resilient member comprising a partengaging the outer alge of the resilient member aml havingr a threadedconne/C- tion with one of the roiiperating members, said resilientmember having a plurality of railial substantially V-shapeil slotstherein.

Vin testimony whereof l affix my signature n1 presence of two witnesses.i

BER N HAR l) REGENBR ECHT.

Wit nessi-s:

F. A. (l-i MP,

